U.S. patent application number 10/465275 was filed with the patent office on 2004-12-23 for combination smoker and barbecue pit.
Invention is credited to Waits, Christopher M., Waits, Gregory A..
Application Number | 20040255926 10/465275 |
Document ID | / |
Family ID | 33517482 |
Filed Date | 2004-12-23 |
United States Patent
Application |
20040255926 |
Kind Code |
A1 |
Waits, Gregory A. ; et
al. |
December 23, 2004 |
COMBINATION SMOKER AND BARBECUE PIT
Abstract
A new and improved combination smoker and barbecue pit having a
housing with an open top, a grill resting on said housing, and a
hood. A firebox is placed within said housing and is used for
holding fuel which, when burned, creates heat and smoke. During the
smoking process, the firebox is positioned below a shield which
deflects and directs smoke into a pair of chambers within the
housing which in turn channel smoke into elongated collection
members evenly spaced below the grill. When smoke fills the
collection members, is spills out the open-ended bottom of the
collection members and drifts toward the grill in an even
distribution. The firebox can also rest on the collection members
where it is directly beneath the grill for barbecuing.
Inventors: |
Waits, Gregory A.; (San
Antonio, TX) ; Waits, Christopher M.; (Cypress,
TX) |
Correspondence
Address: |
GUNN, LEE & HANOR
700 N. ST. MARY'S STREET
SUITE 1500
SAN ANTONIO
TX
78205
US
|
Family ID: |
33517482 |
Appl. No.: |
10/465275 |
Filed: |
June 19, 2003 |
Current U.S.
Class: |
126/25R ;
126/50 |
Current CPC
Class: |
A23B 4/044 20130101;
A47J 37/0704 20130101 |
Class at
Publication: |
126/025.00R ;
126/050 |
International
Class: |
A47J 037/00; F24B
003/00 |
Claims
I claim:
1. A combination smoker and barbecue pit for cooking and smoking
food items from a fuel burning heat source comprising: a firebox
for holding said fuel burning heat source; a housing for
containment of said firebox and said fuel burning heat source; a
grill located above said firebox on said housing; a hood over said
grill; at least one smoke collection member which collects smoke
from said fuel burning heat source and substantially evenly
distributes said smoke to said food items on said grill.
2. A combination smoker and barbecue pit as recited in claim 1
further comprising at least one smoke chamber that traps said smoke
from said fuel burning heat source and channels said smoke into
said at least one smoke collection member.
3. The combination smoker and barbecue pit as recited in claim 2
further comprising a smoke shield between said firebox containing
said fuel burning heat source and said grill wherein said smoke
shield deflects and directs said smoke into said at least one smoke
chamber.
4. The combination smoker and barbecue pit as recited in claims 1,
2, or 3 wherein said at least one smoke collection member is a
plurality of smoke collection members evenly spaced below said
grill.
5. A combination smoker and barbecue pit for cooking and smoking
food items from a fuel burning heat source comprising: a firebox
for holding said fuel burning heat source; a housing for
containment of said firebox and said fuel burning heat source; a
grill located above said firebox on said housing; a hood over said
grill; at least one smoke chamber wherein which collects said smoke
from said fuel burning heat source; a plurality of smoke collection
members that receive smoke from said at least one smoke chamber and
substantially evenly distribute said smoke to said food items on
said grill.
6. The combination smoker and barbecue pit as recited in claim 5
further comprising a shield between said fuel burning heat source
and said grill wherein said shield deflects and directs smoke into
said at least one smoke chamber.
7. The combination smoker and barbecue pit as recited in claim 6
further comprising a drip pan, said drip pan resting on a top
surface of said shield.
8. The combination smoker and barbecue pit as recited in claim 6
wherein said plurality of said smoke collection members are evenly
spaced below said grill.
9. The combination smoker and barbecue pit as recited in claim 8
wherein said housing further comprises: a casing forming a front
wall, bottom wall and back wall of said housing; and two side walls
attached to said casing.
10. The combination smoker and barbecue pit as recited in claim 9
further comprising: at least one opening in at least one of said
two sidewalls; at least one door pivotally mounted to said at least
one of said two side walls, said door covering an upper portion of
said at least one opening; at least one vent hatch pivotally
mounted to said at least one of two said side walls below said at
least one door, said vent hatch covering a lower portion of said
opening and being adjacent said firebox containing said fuel
burning heat source.
11. The combination smoker and barbecue pit as recited in claim 8
further comprising: a vent opening in said hood; a vent cover
pivotally mounted to said hood for selectively opening or closing
said vent opening; a temperature gauge mounted in said hood.
12. The combination smoker and barbecue pit as recited in claim 10
or 11 further comprising: a first pressure pin mounted to said vent
cover to control pivotal movement thereof; a second pressure pin
mounted to said at least one vent hatch to control movement
thereof.
13. The combination smoker and barbecue grill as recited in claim 6
wherein vertical position of said firebox containing said fuel
burning heat source within said housing is adjustable to a position
above said shield and below said grill.
14. A method of operation of a combination cooker and smoker of
food items from a smoking heat source comprising the following
steps: placing food items on a grill mounted at a first location in
or on a housing; creating said smoking heat source at a second
location in said housing; collecting smoke from said smoking heat
source at least one third location in below said grill;
substantially evenly distributing said smoke to said food
items.
15. The method of operation of a combination cooker and smoker as
recited in claim 14 wherein said smoke collecting step further
comprises the steps of: trapping said smoke deflected by a shield
in a chamber within said housing deflecting said smoke from said
smoking heat source around said shield mounted in said housing;
channeling said smoke from said chamber into at least one smoke
collection member.
16. The method of operation of a combination cooker and smoker as
recited in claim 15 wherein said smoke distributing step further
comprises the steps of: overfilling said at least one smoke
collection member with said smoke; releasing said smoke from said
at least one smoke collection member in a substantially even
distribution below said food items on said grill; and exposing said
food items to said smoke.
17. The method of operation of a combination cooker and smoker as
recited in claim 16 wherein said at least one smoke collection
member is a plurality of evenly spaced smoke collection
members.
18. The method of operation of a combination cooker and smoker as
recited in claim 16 further comprising the steps of: catching said
smoke in a hood mounted over said grill; and venting said smoke
from said hood.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to the field of
barbecue grills, cookers, and smokers and, more specifically, to a
new design for a smoker which allows for more evenly distributed
heating and smoking of food and which can also be adjusted to act
as a barbecue grill or cooker.
[0003] 2. Description of Related Prior Art
[0004] The prior art is crowded with barbecue grills and smokers,
in combination and separately. Typically, these devices use
charcoal briquettes or wood as a heat source to cook food placed on
a grill near the heat source. The devices are often adjustable in
some manner to allow for smoking the food as opposed to grilling it
over an open flame.
[0005] Traditional smokers are constructed with the fireboxes
located to the right or left of the grill and the smoker housing.
In this type of construction, smoke and heat from the firebox is
allowed to drift into the smoker housing through vents and thereby
cooking and smoking the meat. The problem with this traditional
type of smoker is that food items placed closer to the firebox
smoke and cook faster than food items placed further away. This
requires food items to be continually monitored and rotated on the
grill to ensure even cooking/smoking of the food items.
[0006] There are many other smoker and barbecue grill designs where
the cooking surface is positioned above the heat source. An example
of these designs include the following: U.S. Pat. No. 4,094,295 to
Boswell, et al; U.S. Pat. No. 4,467,709 to Anstedt; U.S. Pat. No.
4,495,860 to Hitch, et al; U.S. Pat. No. 4,962,697 to Farrar; and
U.S. Pat. No. 5,359,923 to Boswell. Typically, the fireboxes and/or
the grills in the aforementioned patents are adjustable to various
heights depending on whether smoking or barbecue style heating is
desired. Many of these inventions also contain water pans to create
steam to mix with the smoke during the cooking process.
[0007] A patent to Hastings, U.S. Pat. No. 2,666,425, describes a
hooded barbecue grill with two sets of rails placed at different
heights below in the grill to support a removable firebox. The
upper rails are also used to support a heat deflector when the
firebox is located and supported by the lower set of rails. A
patent to Leech, U.S. Pat. No. 3,379,190, also discloses a barbecue
pit which allows for a varying heights of the firebox. The Leech
design has two fireboxes each of which is supported in a cantilever
fashion from opposite sidewalls of the device. The fireboxes can be
raised and lowered to vary the cooking heat at the grill level.
While the Hastings and Leech design allow for adjustable firebox
heights to vary temperatures at the grill, it does not allow for
even distribution of smoke when smoking the food items placed on
the grill.
[0008] A patent to Bussey, U.S. Pat. No. 5,460,159, discloses a
smoker/barbecue pit which allows smoking and barbecuing at the same
time. This invention directs heat and smoke around and towards the
grilling surface from the sides of the grilling surface. This
patent also describes directing smoke and heat through opening on
the sides of the units where detachable pot warmers can be
attached.
[0009] Finally, a patent issued to Ruben, U.S. Pat. No. 5,473,979,
discloses a three-chambered "smoker". The lower chamber where the
firebox is located, has a rotatable partition plate which controls
and directs heat and smoke from below and catches and funnels off
drippings from above.
[0010] Some or all of the aforementioned patents and prior art
attempt to direct and channel heat and smoke in order to vary the
temperature and more evenly distribute the heat and smoke. This is
done with shielding devices which rest between the heat source and
the grilling surface and/or the shape of the hood above the
grilling surface. However, none of the aforementioned patents allow
heat and smoke to collect and drift upwards toward the grilling
surface in an even distribution. It can be seen that there remains
a need for a smoker/barbecue grill which more effectively allows
for an even distribution of smoke and heat from the fire pit.
SUMMARY OF THE INVENTION
[0011] It is an object of the present invention to provide a
combination smoker and barbecue grill which evenly distributes
smoke across food items being cooked on the grill.
[0012] It is another objection of the present invention to provide
a combination smoker and barbecue grill which encloses a fuel
burning firebox underneath the grill.
[0013] It is another object of the present invention to provide a
combination smoker and barbecue grill which has a smoke shield
positioned between the grill and firebox which deflects and directs
smoke into smoke collection members.
[0014] It is another object of this invention to provide a
combination smoker and barbecue grill which directs smoke from the
firebox into smoke collection members which in turn fill and allow
smoke to drift in an even distribution towards food items cooked on
the grill.
[0015] It is another object of the present invention to provide a
combination smoker and barbecue grill which has doors and vent
hatches for the easy removal of a drip pan and the firebox.
[0016] It is another object of the present invention to provide for
vent hatches which function as air supply vents for the combustion
process.
[0017] It is another object of the present invention to make
maximum use of the features of the combination smoker and barbecue
grill by providing smoke collection members which also act as a
support for placement of the firebox at an upper level closer to
the grill for barbecuing.
[0018] It is another object of the present invention to make
maximum use of the features of the combination smoker and barbecue
grill by providing the smoke shield which also acts as a support
for the placement of the drip pan during the smoking process.
[0019] In satisfaction of these and related objectives, Applicant's
present invention provides for a combination smoker and barbecue
grill which has a grill that rests on a housing and which is
covered by a hood. The housing encloses a removable firebox for
holding wood, charcoal, or other fuel while burning, a smoke shield
positioned between the grill and firebox and smoke collection
members are positioned between the grill and smoke shield.
[0020] The smoke shield is centered above the firebox and deflects
and directs smoke from the firebox around the front and back edges
of the smoke shield into a pair of smoke chambers positioned within
the housing and below the grill. Smoke is allowed to fill the smoke
chambers from top to bottom. As the smoke reaches the bottom of the
smoke chambers, it spills into a plurality of elongated, evenly
spaced, smoke collection members attached to interior panels
forming the interior barriers for the smoke chambers.
[0021] Once the smoke fills the smoke collection members from top
to bottom, it will spill out the open-ended bottoms of the smoke
collection members. This causes a substantially even distribution
of smoke to rise from the smoke collection members toward food
items on the grill, allowing the food items to smoke and cook
evenly.
[0022] A drip pan, which is placed on the top surface of the smoke
shield, catches and collects drippings from the food items. These
drippings will evaporate in the drip pan creating vapors which will
rise back towards the food items on the grill further flavoring the
food items. Water can be placed in the drip pan during the smoking
process which will create steam which rises with the smoke and
helps prevent the food items from drying out during the smoking
process.
[0023] Side doors on both housing sidewalls can be rotated open to
allow access to and removal of the drip pan and firebox for
refueling and cleaning. A smaller vent hatch below the side doors
also allow for access to and removal of the firebox and act as air
supply vents for the combustion process.
[0024] If desired, the invention can be converted to a traditional
barbecue grill by placing the firebox on top of the smoke
collection members. In this manner, the firebox is positioned above
the smoke shield, closer to the grill and directly heats and cooks
the food items on the grill in traditional barbecue style.
[0025] The above and other objects and advantages of the present
invention will become more readily apparent when references made to
the following description taking in conjunction with the
accompanied drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] FIG. 1 is a perspective view of the preferred embodiment of
the present invention.
[0027] FIG. 2 is the same perspective view of the preferred
embodiment of the present invention showing the hood and one side
door in their open positions and partly cut away to show the
relative positions of the internal structure.
[0028] FIG. 3 is another perspective view of the present invention
which is partly cut away to show the relative positions of the
internal structure.
[0029] FIG. 4 is a partial cross sectional side elevational view of
the preferred embodiment of the present invention.
[0030] FIG. 5 is a vertical cross sectional view along line 5-5 of
FIG. 4.
[0031] FIG. 6 is a horizontal cross sectional view along line 6-6
of FIG. 5.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0032] Referring to FIGS. 1-6, a combination smoker and barbecue
grill 10 is equipped with a hood 12 and a housing 14. The hood 12
covers a grill 15 which rests on the outer surface of opposed upper
shoulder panels 16a and 16b of the housing 14. The housing 14 has a
casing 11 and housing sidewalls 13a and 13b and forms and enclosure
for a firebox 18, a smoke shield 20, a drip pan 22, and a plurality
smoke collection members 23a, 23b, 23c, and 23d.
[0033] Referring FIGS. 1-3, the hood 12 has a rotatable portion 30
pivotally connected to a stationary portion 32 by pins 34a and 34b.
The rotatable portion 30 of the hood 12 has a vertical front panel
38, an angled front panel 40 and two rotatable sidewalls 42a and
42b. The vertical front panel 38 and angled front panel 40 are
constructed from one continuous sheet of material bent at its
approximate centerline to form the vertical front panel 38 and the
angled front panel 40 which angles upwardly and inwardly towards
the crest of the hood 12. The vertical front panel 38 is equipped
with a handle 44 adjacent its lower end. A temperature indicator 46
is mounted to the upper angled front panel 40. In the preferred
embodiment of this invention, the temperature indicator is
manufactured by Taylor, Model No. 1470 and the vertical front panel
38 and angled front panel 40 are constructed of 16 gauge sheet
metal.
[0034] Still referring FIGS. 1-3, the rotator sidewalls 42a and 42b
are hexagonal and have front vertical edges 50a and 50b and front
angled edges 52a and 52b which are shaped to conform to the outer
edges of the vertical panel 38 and upper angled panel 40. A pair of
horizontal bottom edges 54a and 54b of the rotatable sidewalls 42a
and 42b rest against respective upper edges of the housing
sidewalls 13a and 13b when the hood 12 is in its closed position.
In order to allow the rotatable section 30 of the hood 12 to pivot
at the pins 34a and 34b, lower back edges 56a and 56b of the
rotating sidewalls 42a and 42b extend from the back ends of the
bottom edges 54a and 54b and angle upwardly and backwardly in a
direction generally towards, below and slightly beyond the pins 34a
and 34b. Upper back edges 58a and 58b of the rotating sidewalls 42a
and 42b extend vertically from the upper ends of the lower back
edges 56a and 56b to points adjacent an angled back panel 49 of the
stationary portion 32 of the hood 12 when the rotating portion 30
of the hood 12 is in its closed position (See FIG. 1). A pair of
top edges 59a and 59b of the rotatable sidewalls 42a and 42b extend
respectively from the upper ends of the upper back edges 58a and
58b of the rotating sidewalls 42a and 42b to the crest of the hood
12. In the preferred embodiment, the rotating sidewalls 42a and 42b
are constructed of 16 gauge sheet metal.
[0035] Still referring to FIGS. 1-3, the stationary portion 32 of
the hood has a vertical back panel 48, an angled back panel 49 and
two stationary sidewalls 60a and 60b. The vertical back panel 48
and angled back panel 49 are preferably constructed from one
continuous rectangular sheet of material bent at its approximate
centerline to form the vertical back panel 48 and angled back panel
49 which angles forwardly and inwardly toward the crest of the hood
12. As shown in FIGS. 3 and 4, the angled back panel 49 does not
extend to the crest of the hood 12 creating a rectangular vent
opening 47 across the width of the stationary portion 32 of the
hood 12 between the upper edge 45 of the upper angled back panel 49
and the crest of the hood 12. In an exemplary embodiment, the size
of the vent opening is 3 inches.times.24 inches. However, it is
anticipated that the size of the opening could vary as long as it
is sufficient to adequately vent smoke when desired.
[0036] Referring to FIGS. 1-4, a vent cover 70 is pivotally
connected to the rotatable sidewalls 42a and 42b. The vent cover 70
has a top portion 72 which is of sufficient width and depth to
allow the vent cover 70 to cover the vent opening 47 with minimal
clearance with the vent cover 70 is in its closed position (See
FIG. 1). Rectangular side flaps 74a and 74b extent perpendicularly
from opposite side edges of the top portion 72 of the vent cover
70. The side flaps are adjacent, parallel with, and pivotally
connected to the respective rotatable sidewalls 42a and 42b with
pins 41a and 41b. A front flap 76 extends perpendicularly from the
front edge of the top portion 72 of the vent cover 70 along the
entire width of the vent cover 70. The height of the front flap 76
is sufficient to allow the lower edge of the front flap 76 to rest
against the angled front panel 40 when the vent cover 70 is in its
closed position (See FIG. 1). A handle 78 is centered on and
extends from the top portion 72 of the vent cover 70 to allow an
operator to rotate the vent cover 70 from a closed position to an
open position (See FIG. 3).
[0037] A spring loaded pressure pin 75 is mounted to the outer
surface of the angled front panel 40 adjacent the crest of the hood
12 and positioned such that a pinhead 77 of the pressure pin 75
presses against the inner surface of at least one side flap 74a and
74b of the vent cover 70 at all times. The frictional force created
between the pinhead 77 and the side flap 74b is sufficient to allow
the vent cover 70 to remain in place in any rotated position. In
the exemplary embodiment, the vent cover 70 is constructed of 16
gauge sheet metal. However, it is anticipated that other gauges and
material may be used.
[0038] Referring again to FIGS. 1-3, the stationary sidewalls 60a
and 60b of the hood 12 have vertical back edges 62a and 62b and
angled back edges 64a and 64b which conform to the shape of the
vertical back panel 48 and angled back panel 49 at their side
edges. The angled back edges 64a and 64b extend respectively from
the upper ends of the vertical back edges 62a and 62b to a point
adjacent the opposing side ends of the upper edge 45 of the angled
back panel 49. The stationary sidewalls 60a and 60b of the hood 12
each have angled front edge 66a and 66b with upper ends terminating
at the crest of the hood 12 and lower ends adjacent the vertical
edges of the vertical front panel 38. The hood is rotated to a
closed position (See FIG. 1). The stationary sidewalls 60a and 60b
have vertical front edges 68a and 68b (See FIG. 2) which extend
from the lower ends of the angled front edges 66a and 66b and rest
against the upper shoulder 16a of the casing 11. Bottom edges 69a
and 69b of the stationary sidewalls 60a and 60b extend from
respective lower ends of the front edges 68a and 68b to the lower
ends of the vertical edges 62a and 62b of the stationary sidewalls
60a and 60b. In the exemplary embodiment, the height of the front
edges 68a and 68b is approximately 4 inches. However, it is
anticipated that a range of heights are suitable as long as the
rotating portion 30 of the hood 12 can open and close freely.
[0039] Referring to FIGS. 1, 2, 3, and 5, the width of the
stationary portion 32 of the hood 12 is equal to the width between
the interior surfaces of the housing sidewalls 13a and 13b. As
shown in FIGS. 2 and 4, rectangular mounting flanges 67a and 67b
extend from respective bottom edges 69a and 69b of each of the
stationary sidewalls 60a and 60b and are positioned flush against
the interior surfaces of the housing sidewalls 13a and 13b. The
mounting flanges 67a and 67b are connected to the housing sidewalls
13a and 13b with nut and bolt combinations 65. The stationary
portion 32 of the hood 12 is mounted and fixed to the housing 14 in
this manner. In the exemplary embodiment, each combination of the
mounting flanges 67a and 67b and stationary sidewalls 60a and 60b
are constructed of a continuous sheet of 16 gauge sheet metal.
[0040] The shape of the hood 12 has been described in detail in
this preferred embodiment. It is anticipated that various
modifications to the shape and design of the hood 12 are acceptable
and would become apparent to persons skilled in the art.
[0041] As shown in FIGS. 2, 4, and 5, the grill 15 rests on the
upper shoulder panels 16a and 16b of the casing 11 and across the
opening created between the upper shoulder panels 16a and 16b. The
grill 15 also rests on mounting brackets 17a and 17b secured to the
interior surfaces of the mounting flanges 67a and 67b with nut and
bolt combinations 65.
[0042] Referring to FIGS. 1-4, the housing 14 is formed by the
housing sidewalls 13a and 13b mounted to the casing 11; the casing
11 is preferably formed by one continuous, rectangular sheet of
material which is bent to form a floor panel 80, a front panel 82,
a back panel 84, the upper shoulder panels 16a and 16b, and two
smoke deflection panels 86a and 86b, all of which are of equal
width.
[0043] Still referring to FIGS. 1-4, the front panel 82 and back
panel 84 of the casing 11 extend and angle inwardly respectively
from the front edge and back edge of the upper shoulders 16a and
16b. The floor panel 80 is horizontal and extends between the lower
ends of the front panel 82 and back panel 84. The upper shoulder
panels 16a and 16b are horizontal and extend inwardly from the
upper ends of the front panel 82 and back panel 84 respectively. In
the exemplary embodiment, the length of the front panel 82 and back
panel 84 is approximately 28 inches and each forms an inward angle
in a range of approximately 10.degree.-15.degree. with a vertical
plane. However, it is anticipated that the length of the front
panel 82 and back panel 84 and the inward angles formed by the
front panel and the back panel 84, with a vertical plane, can vary
as long as the enclosure formed by the casing 11 is of sufficient
size to contain the firebox 18, a desired quantity of fuel 19, the
smoke shield 20, the drip pan 22, the upper smoke deflection panels
86a and 86, and the smoke collection members 23a, 23b, 23c, and 23d
in a manner consistent with this invention.
[0044] Referring to FIGS. 3-5, the upper smoke deflection panels
86a and 86b extend downwardly and at an inward angle from the inner
ends of the upper shoulder panels 16a and 16b respectively and form
upper smoke chambers 88a and 88b within the housing between the
upper smoke deflection panels 86a and 86b and the front panel 82
and back panel 84 respectively. In the exemplary embodiment, the
inward angle formed with a vertical plane by the smoke deflection
panels 86a and 85b are equal to or slightly greater than the inward
angles formed by the front panel 82 and back panel 84 with a
vertical plane. However, it is anticipated that the inward angle
formed by the smoke deflection panels 86a and 86b with a vertical
plane can vary as long as the smoke deflection panels 86a and 86b
cause smoke from the fuel to be collected in the upper smoke
chambers 88a and 88b, and direct it into the smoke collection
members 23a, 23b, 23c and 23d in a manner consistent with this
invention.
[0045] Referring to FIGS. 1-4, each of the housing sidewalls 13a
and 13b are preferably constructed of one continuous solid sheet of
material, which, in the exemplary embodiment, is 16 gauge sheet
metal. The width of the housing sidewalls 13a and 13b is equal to
the distance between opposing outer edges of the upper shoulder
panels 16a and 16b. Preferably, the housing sidewalls 13a and 13b
are mounted to the casing 11 along its outer edges with welds.
However, other means of attachment are acceptable and anticipated.
The length of the sheets of material forming the housing sidewalls
13a and 13b are sufficient to allow the housing sidewalls 13a and
13b to extend downwardly beyond the floor panel 80 of the casing 11
and to be bent 90.degree. inwardly and then 90.degree. upwardly
along two horizontal creases to form feet 100a, 100b, 100c, and
100d with exterior segments 101a, 101b, 101c, and 101d, interior
segments 103a, 103b, 103c, and 103d, base segments 105a, 105b,
105c, and 105d, and interior support panels 102a and 102b.
[0046] Upper rectangular openings 104a and 104b are punched out of
the housing sidewalls 13a and 13b and are covered with side doors
106a and 106b and vent hatches 136a and 136b both of which are
pivotally connected to the housing sidewalls 13a and 13b.
[0047] Still referring to FIGS. 1-4, lower rectangular openings
108a and 108b are punched out of the housing sidewalls 13a and 13b
to form the separation between the feet 100a, 100b, 100c, and 100d.
In the exemplary embodiment, the depth of each of the exterior
segments 101a, 101b, 101c, and 101d, interior segments 103a, 103b,
103c, and 103d and base segments 105a, 105b, 105c, and 105d are
approximately 6 inches respectfully. In addition, the width of each
of the base segments 105a, 105b, 105c, and 105d are equal and are
approximately 3 inches. However, it is anticipated that these equal
widths and equal depths are of the exterior segments 101a, 101b,
101c, and 101d, interior segments 103a, 103b, 103c, and 103d, and
base segments 105a, 105b, 105c, and 105d may vary as long as the
size of the feet 100a, 100b, 100c, and 100d is sufficient to
support the weight of the combination smoker and barbecue grill
10.
[0048] The interior support panels 102a and 102b extend vertically
from the upper ends of the interior segments 103a, 103b, 103c, and
103d of the feet 100a, 100b, 100c, and 100d and connect to the
bottom, outer surface of the floor panel 80 of the casing 11. In
the preferred embodiment, the interior support panels 102a and 102b
connect to the outer surface to the casing with welds. However, it
is anticipated that other methods of connection may be used.
[0049] Still referring to FIGS. 1-4, the interior support panels
102a and 102b have tapered edges 107a, 107b, 107c, and 107d.
Although not shown in the drawings, it can be appreciated that the
interior support panels 102a and 102b are symmetrical from front to
back and the back ends of the interior support panels have
identical but opposite tapered edges as those shown in the
drawings. The tapered edges 107a, 107b, 107c, and 107d angle
inwardly from the top end of the outer edges of the interior
segments 103a, 103b, 103c, and 103d of the feet 100a, 100b, 100c,
and 100d to the floor panel 80 at its nearest outer edge.
[0050] Referring to FIGS. 3-6, the plurality of smoke collection
members 23a, 23b, 23c, and 23d attach to and bridge the lower ends
of the smoke deflection panels 86a and 86b. As shown in FIGS. 4, 5,
and 6, each of the smoke collection members 23a, 23b, 23c, and 23d
are identical in size and shape and have a sufficient length such
that the opposite ends of each smoke collection members 23a, 23b,
23c, and 23d extend an equal length beyond the lower ends of the
smoke deflection panels 86a and 86b into the upper smoke chambers
88a and 88b at opposite ends. As shown in FIGS. 4 and 5, each the
smoke collection members 23a, 23b, 23c, and 23d have an open-ended
bottom with a solid upper surface designed to trap and collect
smoke which drifts into it from the upper smoke chambers 88a and
88b. In the exemplary embodiment, the upper surface of the smoke
collection members 23a, 23b, 23c, and 23d is triangular and formed
with two-inch angle iron. However, it is anticipated that other
shapes, such as square or semicircular, are acceptable.
[0051] Referring again to FIGS. 4, 5, and 6, the smoke collection
members 23a, 23b, 23c, and 23d are attached to the smoke deflection
panels 86a and 86b by positioning them into cuts made in the lower
ends of each of the smoke deflection panels 86a and 86b. The cuts
are evenly spaced across the width of the lower ends of each of the
smoke deflection panels 86a and 86b and positioned such that the
smoke collection members 23a, 23b, 23c, and 23d are parallel to
each other when attached. The cuts are shaped to conform to the
shape of the upper surface of the smoke collection members 23a,
23b, 23c, and 23d so that the bottom edges of the smoke collection
members 23a, 23b, 23c, and 23d are even with the lower edges of the
smoke deflection panels 86a and 86b. The preferred embodiment of
this invention has four smoke collection members 23a, 23b, 23c, and
23d. However, it is anticipated that a fewer or greater number of
smoke collection members may be used.
[0052] Referring now to FIGS. 2-4, the smoke shield 20 is
positioned between the firebox 18 and the lower edges of the smoke
deflection panels 86a and 86b. The smoke shield 20 is desirably
constructed of one continuous rectangular sheet of material which
is bent along two horizontal creases to form a bottom panel 90 and
two angled side panels 92a and 92b. The smoke shield 20 is centered
between the front panel 82 and back panel 84 of the casing 11 and
positioned so that the bottom panel 90 is horizontal, and the
angled panels 92a and 92b extend upwardly and outwardly towards the
front panel 82 and back panel 84 respectively. The width of the
smoke shield 20 is equal to the width of the casing 11 and is
attached to the interior surfaces of the housing sidewalls 13a and
13b preferably with welds. However, it is anticipated that other
means of attachment may be used. Preferably, the depth of the smoke
shield 20 after bending is approximately equal to the depth of the
floor panel 80 of the casing 11. In the exemplary embodiment, the
height of the smoke shield 20 after bending is approximately 4
inches and the angled panels 92a and 92b form approximately a
30.degree. angle with a vertical plane (See FIG. 4). However, it is
anticipated that the depth and height of the smoke shield 20, as
well as the angle of the angled panels 92a and 92b may vary as long
as the size and shape of the smoke shield 20 is sufficient to
direct smoke 21 from the firebox 18 into the upper smoke chambers
88a and 88b in a manner consistent with this invention.
[0053] Referring again to FIGS. 2-4, the rectangular firebox 18 has
rectangular sidewalls and is placed on the floor panel 80 of the
casing 11 during normal operation of the combination smoker and
barbecue grill. The firebox 18 is small enough to fit within the
perimeter of the floor panel 80 and through the upper rectangular
openings 104a and 104b when a rotatable vent hatch 136a and 136b is
rotated to an open position (See FIGS. 1 and 3) but large enough to
hold fuel 19, such as charcoal or firewood, sufficient to create
adequate cooking temperatures.
[0054] Still referring to FIGS. 2-4, the drip pan 22 is also
rectangular with rectangular sidewalls and is placed on the upper
surface of the bottom panel 90 of the smoke shield 20 during normal
operation of the combination smoker and barbecue grill. The drip
pan 22 is large enough to catch the drippings from cooked items on
the grill 15 and small enough to fit within the perimeter of the
bottom panel 90 of the smoke shield 20 and through the upper
rectangular openings 104a and 104b when the side doors 106a and
106b are rotated to an open position.
[0055] FIG. 1 shows how one side door 106a and vent hatch 136a are
mounted to the housing sidewall 13a. It can be appreciated that a
second door 106b and a second vent hatch 136b are mounted to the
opposite housing sidewall 13b in an identical manner as depicted in
FIG. 3. Now referring to FIGS. 1 and 2, the side door 106a is
pivotally mounted to the housing sidewall 13a by small cylindrical
extensions 120a and 120b which extend horizontally from the lower
ends of the vertical edges of the side door 106a and which rotate
and slide within lower notches 122a and 122b between the housing
sidewall 13a and lower door brackets 123a and 123b. As shown in
FIG. 1, the side door 106a is held in its closed position by four
rectangular tongue pieces 124a, 124b, 124c, and 124d which are
mounted to the outer face of the side door 106a. Two tongue pieces
124a and 124b are mounted near the upper end of the side door 106a
and extend outwardly and horizontally from opposite vertical edges
of the side door 106a. Two tongue pieces 124c and 124d are mounted
near the lower end of the side door 106a and also extend outwardly
and horizontally from opposite vertical edges of the side door
106a. As shown in FIGS. 1 and 2, two tongue pieces 124a and 124b
are positioned to slide into upper notches 126a and 126b in upper
door brackets 128a and 128b when the 106a is in a closed position.
Similarly, two tongue pieces 124c and 124d are positioned to slide
into upper notches 126c and 126d in the lower door brackets 123a
and 123b when the side door 106a is in a closed position.
[0056] Still referring to FIGS. 1 and 2, the side door 106a is
equipped with a handle 130 towards its upper end. In order to open
the door 106a, the handle 130 is lifted vertically causing the door
106a to slide vertically and allow the tongue pieces 124a, 124b,
124c, and 124d to clear the lips of the upper notches 126a, 126b,
126c, and 126d. Simultaneously, the cylindrical extensions 120a and
120b slide upward within the lower notches 122a and 122b. The side
door 106a can then rotate outwardly with the lower tongue pieces
124c and 124d engaging and sliding on upper curved edges 132a and
132b of the lower door brackets 123a and 123b. The vertical height
of the lower notches 122a and 122b is sufficient to allow the
cylindrical extensions 120a and 120b to slide vertically a
sufficient height which, in turn, allows the tongue pieces 124a,
124b, 124c, and 124d to clear the lips of the upper notches with
minimal clearance when the side door 106a is lifted vertically from
its closed position.
[0057] Still referring to FIGS. 1 and 2, the lower brackets have
shoulders 134a and 134b at the lower end of the curved edges 132a
and 132b. The shoulders 134a and 134b engage the lower tongue
pieces 124c and 124d as the side door 106a rotates outwardly. The
shoulders 134a and 134b are positioned to prevent the side door
106a from rotating greater than 900. When the lower tongue pieces
124c and 124d engage the shoulders 134a and 134b, the door 106a
rests in a horizontal plane and can act as a shelf for placement of
the firebox 18 and drip pan 22 during cleaning.
[0058] Still referring to FIGS. 1 and 2, the vent hatch 136a is
positioned below the side door 106a such that the upper edges of
the vent hatch 136a is adjacent the lower edge of the side door
106a. The vent hatch 136a is rectangular and has a width equal to
the width of the side door 106a and height sufficient to cover the
remainder of the upper rectangular opening 104a which is not
covered by the side door 106a and to allow the removal of the
firebox 18 when the vent hatch 136a is rotated to its opened
positioned. An elongated rectangular plate 138 is attached to the
outer surface of the vent hatch 136a near its upper end. The width
of the plate 138 is equal to the width of the vent hatch and the
vertical height of the plate 138 is sufficient to allow the upper
edge of the plate 138 to extend vertically from the upper edge of
the vent hatch 136a and overlay the bottom edge of the side door
106a when the side door 106a and the vent hatch 136a are in their
closed position. In the preferred embodiment, the plate 138 is
attached to the vent hatch with welds. However, other methods of
attachment are anticipated.
[0059] The vent hatch 136a is pivotally mounted to the lower door
brackets 123a and 123b by an elongated cylindrical rod 140 mounted
to the vent hatch 136a along its bottom edge preferably with welds.
Opposing ends of the rod 140 extend beyond the vertical edges of
the vent hatch 136a into holes in the lower brackets 123a and 123b.
The opposing ends of the rod 140 fit and rotate in the holes with
minimal clearance. A handle 144 is attached to and centered on the
plate 138 and is used for opening and closing the vent hatch 136a.
A spring loaded pressure pin 146 is mounted to the vent hatch 136a
adjacent one vertical edge of the vent hatch 136a near its upper
end. The spring loaded pressure pin 146 is positioned so that a
pinhead (not shown), presses against the inner surface of the lower
bracket 123a creating a frictional force which allows the vent
hatch 136a to remain in place in any rotated position. In this
manner, the vent hatch can act as a vent by rotating the vent hatch
into varying positions.
[0060] The lower bracket 123a has first and second holes 148a and
148b. The first hole 148a is positioned to accept the pinhead (not
shown) when the vent hatch 136a is in its vertical, closed
position. The second hole 148b is positioned to accept the pinhead
(not shown) when the vent hatch 136a is rotated 90.degree. to a
horizontal open position. In this manner, the vent hatch 136a will
remain locked in a closed position or horizontally open position
unless the pinhead (not shown) is manually released.
[0061] In the exemplary embodiment, the side doors 106a and 106b,
vent hatches 136a and 136b, and plates 138 are constructed of 1/4
inch sheet metal. However, it is anticipated that other materials
and suitable gauges of material can be used.
[0062] FIG. 4 depicts how the combination smoker and barbecue grill
works in normal operation. When it is desired to smoke food items
placed on the grill 15, the fuel 19 is first placed in the firebox
18 which is positioned on the floor panel 80 of the casing 11. The
fuel 19 is lit and when the temperature in the combination smoker
and barbecue grill 10 reaches a desired level, food items are
placed on the grill 15 and the hood 12 is closed. As shown in FIG.
4, the smoke 21 and heat which rises from the burning fuel 19 is
blocked by the smoke shield 20 and is caused to deflect and pass to
the left and right of the smoke shield 20 and past the angled
panels 92a and 92b of the smoke shield 20. This directs the smoke
21 into the upper smoke chambers 88a and 88b where it collects and
fills the upper smoke chambers 88a and 88b from top to bottom. As
the collected smoke 21 reaches the bottom of the smoke chambers 88a
and 88b, it drifts into the smoke collection members 23a, 23b, 23c,
and 23d from their open-ended opposite ends and bottoms. The smoke
21 will then collect and fill each of the smoke collection members
23a, 23b, 23c, and 23d evenly from top to bottom along the length
of the smoke collection members. Once the smoke 21 has filled each
of the smoke collection members 23a, 23b, 23c, and 23d, it spills
out the open-ended bottoms of the smoke collection members in a
substantially even volume along the length of each of the smoke
collection members. The smoke will also spill from the upper smoke
chambers around the bottom edge of the smoke deflection panels 86a
and 86b between the smoke collection members 23a, 23b, 23c, and 23d
and between the housing sidewalls 13a and 13b and the outer most
smoke collection members 23a and 23d. This creates a substantially
even distribution of the smoke 21 drifting upwards from the smoke
collection members 23a, 23b, 23c, and 23d to the food items on the
grill 15. In this manner, the food items are cooked and smoked
evenly. As the smoke 21 drifts upward past the grill and food
items, it will collect in the hood 12. The vent cover 70 can be
selectively rotated to either a partially or fully open to allow
the collected smoke 21 to escape. The volume of smoke 21 which can
escape from hood 12 can be regulated by the degree of rotation of
the vent cover 70.
[0063] Still referring to FIG. 4, the drip pan 22 is placed on the
top surface of the bottom panel 90 of the smoke shield 20.
Drippings from the food items will fall into the drip pan 22 where
they will evaporate creating vapors which will rise back towards
the food items on the grill 15, further flavoring the food items.
If desired, water can be placed in the drip pan 22 during the
smoking process which will create steam which mixes with the smoke
21 and helps prevent the food items from drying out during the
smoking process.
[0064] If it is desired to barbecue the food items, the firebox 18
is placed on top of, and rests on, the outer surfaces of the smoke
collection members 23a, 23b, 23c, and 23d. In this manner, the heat
and smoke 21 created by the burning fuel 19 is much closer to and
directly heats and cooks the food items on the grill 15 in a
traditional barbecue style.
[0065] Although the invention has been described with reference to
specific embodiments, this description is not meant to be construed
in a limited sense. Various modifications of the disclosed
embodiments, as well as alternative embodiments of the inventions
will become apparent to persons skilled in the art upon the
reference to the description of the invention. It is, therefore,
contemplated that the appended claims will cover such modifications
that fall within the scope of the invention.
* * * * *